Dynamic Magnification Factor of Pile-Supported Wharf under Horizontally Bi-Directional Ground Motion.
- Resource Type
- Article
- Authors
- Gao, Shufei; Gong, Jinxin; Feng, Yunfen
- Source
- Journal of Earthquake Engineering. Jan2021, Vol. 25 Issue 1, p139-161. 23p.
- Subject
- *STATIC equilibrium (Physics)
*MOTION
*MECHANICAL models
*EARTHQUAKE resistant design
- Language
- ISSN
- 1363-2469
This study proposes a generally applicable equation for dynamic magnification factor (DMF) based on the conditions for static equilibrium of an equivalent mechanical model for actual wharf under horizontally bi-directional ground motion. The new equation can be expressed as a function of eccentricity ratio and aspect ratio for wharf segment. The applicability and accuracy of proposed equation are validated by conducting two case studies that compare DMF determined by equation with that determined by nonlinear time history analyses using bi-directional earthquake ground motion records. The validation shows that the new DMF equation has favorable applicability and accuracy. [ABSTRACT FROM AUTHOR]